Envelop-machine.



"Nm 893105'. n PATENTE) JULY 14 "19o w. n. sLATBR. l 8

. f BNVBLOP MACHINE. j

APPLICATION FILED JULY 6. 1903. 2 SHEETS-SHEET I.

8 Fig 8 88 bq. H 8 l wdr-messes 7 Inbeno" n@ Wwm PATENTED JULY 14,11908.

- w. D. SLATBR.. .ENV-BLOP MACHINE. APPLICATION FILED JULY 6. 1903.

2 SHEETS-SHEET 2.

.'.ummD.Smet

Affomeu Qi-ggg mir/gm?.- i n UN'iTnD sfr-Arne WILLIAM l). SLATE lt, 0F SPRINGFIELD, MASSACHUSETTS,

EN Y ELQPE COM l.\\ NY, OF SPRINGFIELD, MASSACHUSETTS, A CORPORATION OF lASSIGNOR TO UNITED STATES MAINE.

EnvieLoP-MAHInE;v

` Application filed July 6,

To all w11 om 'it 'may conce/"ri:

Be it known that l, l/ViLLiAM Springiield, in the county of Hampden and (,omnn'inwea vented a new and useful Iniprovenientin Blnvelop Machines, of which t'he followingis a specification, accompanied by. drawings f chine employed for applying;r transparent strips or patches toY theenveloi 4 is a top view ofthe re trans-parent' patches.

viewon line 5 5, Fig@ 4.

VieW-on line o' (i, Fig. 4 Fig'.i 7 ijs aper- "spective' v ie'w of one of :the separators con` tained'in the patch Aholding-reservoir. Fig. i 8 is a ldetailv view of thcdevice for registering the envelopbla f Fig. 9 is. a- 'vieW of the envelop blank-havin au transparent' .patch'j applied thereto ang show ing. ,that si 'de vof the folde lenvelop- Fig', 5V is a sectional form the ln Similar letters -and vfigures of reference refer to similar parts in thel different views.

trade as f outlin'ik-envelops"4 orenve'lops havlng,r ariopaque body of this character-'are designed to be used With in'closu'res h avi ngthe ai 'thereonto register with the transparent sectionl of the env `the' env'e lo'p. Such 'envel'o ps' are c manufac- -iturer'l by pasting' a p per over an opening tion inthe envelopblank..v '"l`heentire' operation'of 'applying the 'transparent patch to-thezbody of 'the' envelop has h'eretofiire been'doneby handVand it 1s the lol' jecf,of-iny`present invention to' provide rijiecl'ianism'for the application of the transe parent patch toA the i which. the operation and rapidly performer and to arrange thatthe' trans shall be applied to the envelop l .by '-HlwCfhanical'means'; )arent atch )lank uring Specification oifLetters Patent,

D.; S'LATER, a citizcnof the Inlted States, residlng'at i Figure 1 rcpresi-mts a side clevationof so' Fig'. is4 a top view-of lthe saine.-

rtionof fthe mai blank. aFg-44 servoir'tor holding. the' y Fig. 6 isa 'sectional nk o n the pressing table, anda aceomplishing de ofthe blank 'whicliisto My present invention relates tofa vmachine 1 for* in anufacturing what are--kinivijn -1- n the with a vtrans-parent, .s'ecf tionor panel at that part of theenvelop cmf monly occupied by: the 'address Envelope ldrs's suitablypl'aced' atch of'transparent paffforined proper 'posif oily" ofthe 'envelop by' 'can beA .a-ut'on' iatieallyv the period intervening between'the opera- Patented July 14.v 1 ece. 1903. serial no. ieaslia' tions of `gum-ming anenvelop blank and-fold? ,ing the lhapsof said. blank 'as performed upon an envelop 'machine of. the known type.

Them'echanism'embodying lily-present invention is designed tooperate upon an envelop blank having an elongated' piece cut' from the body of the envelop-.at that part usually occupied bythe address, 'and thereby v forming 'an opening in the envelop', and my inventionA 'com rises meansfo'r applying ad- ','he's'ive materia to -the'bodyof 'the envelop blank around the' elongated 1 opening', v. means forfeeding the gummed envelop blank forward overa pressing table; means forregis- 1 tering the envelop blank .on the pressii-ig table; 'means -for applying an elongated j transparent patch to the bo'dyof the envelop blank slightly larger than4 the opening, so' that theedge--of vtl-lepatcli will 'overlap the v gu'inmed margin around the opening', vn ieans for' applying pressure to the transparent patch 'to secure its irm adhesion to the body A.ofthe envelopblank;,` and means for removfing thepatcl'ied blank from the pressing table. Thecombination-of instrumentalities -for'- Vthe above mentioned. o'pera' .tions automatically and by. .mechanical means inthe envier-named, Athe combin ation of th'e above'-'instrumentalities witlnan 'en-fA A'velop machine for n1anufaeturing a conL- pleted'- envelop, 'and such 'arrz'ingeinent of parts.. of anenvelop machine as may be neces-- saryv to vapply a' patch to an envelop blank between the operation of gumming an envelop 1 blank and folding'the ilapsfof said blank,-9o .form the' subject" of my present invention. 4Infthe" accompanying drawings' I have shown onlysuch parts vof anl envelop machine .as are .necessary'to clearly set forth thec'on- 'str iic'tion' and-operation of mechanisrn'for. carrying' outnmy present invention, there-' main'ing 'parts'of the envelop-v machine-.as -showninthe 'resent instance' havi11g been fullyl describe .in Letters Patent: of the United 'State s,"ii40 l,462,`issued to VA. AI Rheutany-April 16,1889." 'I' do not-confine myself, however', to any particularmechanism for a'liixing 4the patch; I have shown m'eansi.V

for accomplishing thisresult.incombinatiotifil 1neans of so doing Would come within vthe spiritI of myinyention.

with the operation of an .envelop machine,

Referring to the accompanying drawings 1 denotes the framework of the machine, 2 the feeding table upon which a pile of envelop v blanks 3 are supported in position to be tan elongated hole 3, in that part of the blank usually occupied by the address.

i 13, and beneath horizontal In Fig. 9 the envelop blank is represented with a transparent elongated patch 4 slightly larger than the hole 34 which is pasted upon the body of the envelop by the mechanism forming the subject of my present invention. Gum is applied in a narrow strip around the hole 34 of thel topmost blankin the pile 3, by means of a gumming die 5, which with a gumming die 6 is attached to a vertically reciprocating spindle 7, to which motion is given at the proper time by means of a cam not shown, and connected operating mechanism. AGum is applied to the under surface of the gumming dies 5 and 6, when in their elevated position, by means of a traversing gum roll 8, which receives a coating of gum at one end of its travel from a gumming roll 9, rotatingin contact with a gumming roll 10, which is partially immersed in adhesive material contained in a gum box 11. The gumming dies 5 and 6 in their descent apply gum in a narrow strip around the hole 34L and also to the rear edge of the blank, causing the gummed blank tobe lifted by the adhesion of its gummcd surface as the dies move upward. The raised rear edge of the blank is then seized by a hinged gripper 12 upon a carriage 121 and drawn backward toward the rear of the machine upon a table guide bars 14, in position to be engaged by pawls 15, 15, which hold the blank from being returned at the next forward movement of the carriage. At the nextrearward reciprocating movement of the carriage, the envelop blank held by the pawls 15, is engaged by projecting spurs 16, in position to be again retained .by the pawls 1.7 at the next forward movement of the carriage. At the next succeeding rear- Ward movement of thecarriage the blank in its second position is enga ed by hooks'18 and carried forward beneat a reciprocating plunger 19, by which it is pushed downward through a rectangular hole in a creasing plate 20 upon afolding bed, where itsiiaps are folded over by hinged folders, two of which are represented at 21, Fig. 1. These operations and the mechanism by which they are performed, with the exception of the gumming die 5, are fully shown and described in the Letters ferred to, and form no part of my present in- Patent to Rheutan, above re.

vention, the only addition l make to the gumniing, carrying, anddfolding mechanism in carrying out my invention on a lheiiian envelop machine consists in the gumming d ie 5, shown in end view in Fig. l, and in top View in Fig. 2, and designed to appl y a nai'- row strip of gum around the hole 3" which has been previously formed in the. envelop blank.

While the envelop blank with gum applied around the hole 34 dwells in its second posi tion of rest and retained by the pawls 17, l apply thereto the transparent patch 1r, preferably shaped to correspond with the shape of the hole 3, but slightly larger so as to overlap the envelop blank as indicated by the narrow space 22, Fig. and l accom-- plish this result as hereinafter described. Beneath the envelop blank 24 and arranged to support the saine, I place a pressing table 23, Fig. 3, sufliciently firm to resist the downward pressure required to firmly attach the transparent patch to' the envelop blank.

lower sides, and provided at each end with vertical guide bars 26, 26, adapted to slide vertically in fixed ways 27 in the ends of brackets 28, attached to a cioss bar 2E), which is supported at its ends by posts 3() erected on the framework of the machine.

i Recessed in the inner wall of the patchholder 25 are a series of separators 31, one of which is shown in perspective view in F ig. 7. Each separator consists of a metal bar provided at the lower end with inward pro- Jections oi toes 32 adapted to extend beneath and support a series of patches held in ihe atch-holder as indicated by the broken ines 33, Fig. 6. Heldin circular holes in the wall of the patch-holder are a series of l pins 34, provided with. shoulders 35,- against which spiral springs 36 are arranged to 'bein' to press the pins downward until their downward movement is limited by a cotter pin 37. The pins 34 are arranged in pairs, two on each side of the patch-holder, and their lower ends are connected by a notched plate 38 normally projecting beyond the lower end of the patch-holder, but capable of being forced upwardly into a recess 39 in the lower edge of the patch-holder. The guide bars 26 of the atcb-holder are provided at their ii p per ends with studs 40, which are connected by links 41, with arms 42, carried' upon a rocking shaft 43, carrying a radial arm 44, to the outer end of which is pivoted a link 45,L carrying at itslower end a cam roll 46, which is held in contact with a cani 47, carried ii )on the cam shaft 48, the cai'n roll being heli in contact with the cam 4 7 by a spiral spring 49, causing a rocking motion to be imparted to the rock shaft 43 at the proper inne to carry the patcli-holder 25 down and bring the-lowermost patch into' contact withthe is pivoted at its lower end to-an arm 58,'carlirackets'll, 60, and carrying an arm 6]., to the end oi which .is pivoted a lm`k'62, carry'-v and provided with a i .40

. .the proper period 'with'the` roll 79 and rock "registration with the i with triangular teeth 81, adapted to scrape l. downin the pat* ,holder and prevent them' L y the series oi' patches, is a follower 50|,attached Ato a s'teml which is pivoted at its upper y to carry the 'follower 5() downward and apply shaft' 7 4 is rocked. i `The shaft 74 is also provided with a third radial arm 78 extending gunnned'surface of the envelop blank laround the hole'34. v p y lnclosed 1n' the patch-holder andabolvc.

end to a lever 52. The lever 5 2-is pivoted at oneI end at o3 toaiixed bracket-,54, and its opposite. end. is bifurcated and provided; with a pivotal pin 55, which extends through a slot 56 in tht upper end of' a' link 57, which ried bv a rock shaft 59,V journaledin fixed ing a cam roll v63, which is held in contact withia 'cam 64, on the shaft 48, by a spiral spring 65, by which at the proper period a rocking motion is imparted `to the shaft 59 a pressure to the patches as hereinafter del Attached to the extended ends'of' the pin` 55 are spiral springs 66, having their opposite ,ends attached to the radial arm 58, so that the pin 55 normally held atthe lower end of the slot 56. y The reciprocating motion ot vthe carriage 121 is accomplished by means of' a lever 67 connected by a link 63 withthe carriageat its vupper end, with its lower end `tric 73, on the cam shatt48. The envelop blank is held in proper registration on the pressing table "Z3, by a device shown in Figs. 3 and S, and consisting of a short rock shaft 7 4 'journaled beneath the pressing: table 23,'

to the free end s of W ich 'are adjustably attached rcgisteringpins 76, capable of a verticalA sliding;r movement m lugsV 77, as the obliquely downward, carrying on its 'free end -a roll 79, in the path of an arm. 80, carried by 'the carriage 12, and arranged to contact at Athe shatt- 74, to carry theregisteringr pins 76 above the upper-'surface of the pressing table 23 and engage .the rear edge of the envelop blank` and hold.- it in proper position on the pressing table, with thevopemng 34 in proper atches supported abovelit in the patch-ho der 25. The inner surfaces of the separator bars31 are provided the ledges of the atches as they are moved from' clinging to [each/other. The desired taining screws pair of radial arms 75,

pressureotthe teeth 8 1 against the edges of the 'patches .1s secured by means of anvadjusting screw 82, FigV 6, held in the patchholder' and arrangedl to bear 'against the separator' b patches. The se-arator bars lare held in place in the' patc 1-holder by means of rein the patch-holder and enter a screw threaded hole 84 in tbe separator bar. t

-v The operation of the .above described mechanism for applying' patches to theenvelop blank is as follows A gummed envelop is'brou'ght int-o the position of the blank'24, Figs. 2 and 3, by the rearward movement of the carriage 1'2\ 1, with the body of' the envelop blank over the pressing table:

.23 against the registering pins 76. During the dwell of the blank in this position or during the return forward movement of the carriage, the patch-holder 33v which pass through a hole 25 is carried down by the action of the'cam 47 and' spiral spring 49,'

'to bring the lowermost patch`in-the-holder into contactwith lthe gummed' surface ofthe envelop blank surrounding; the hole .34. T,he

:patch-holder is held at the downward end of its movementfor a short period by a short .concentric section'85 of the earn 47 before'it is again raised toA its normal "position,.in

. which-it is held by the concentric section. 86

'of'l the cam'47.

shaped to allow the springr 65 to' move the.

The' cam 64 is suitably follower 5() from its elevated position, first gradually downward `followingr the patches in the patch-holder 25, and when the patchholder has reached its lowest position .with a patch in contact with the envelop blank, the

depressed section 37 of the cam '64 allows the l spring` 65 to bring the. follower down witha' quick andsudden movement, thereby imparting a blow to the patches'in the patchholder with su'liicient force to cause the iirm adhesion of the lcwermost patch to the aummed surface of the envelop blank, when the cam 64raises the follower in advance of the'upward movement of the patch-holder and holds it in its elevated position by the'.

vconcentric'secti0n`88 of the cam 64. The

adhesion ot the lowermost patch to the `gummed 'surface ofthe envelop blank is sulliholderpast thetoes32 of the separators. The envelop blank with alpatch 4 applied thereto covering the hole, as represented 1n Fig. 9, '1s then movedl rearward by. the next Although have sht'iwn'and described a lpatch applying mechanism in connection with the envelop machine described Ain Letters Patent ofthe United States $401,462, I do not confine myself to this particular type of envelopmachine. `Any type of envelop machine preferably one in which .a dwell can l .be give/ato the envelop blank' between ,thel ar and' push' 1t inward agains'tsthe 'l gummlng* `and folding mechanisms, is adapt* '110 cient to remove thepatchtrom the patch-.

ed to the application of my patch applying mechanism.

The atch holding receptacle, pressing ta ble andp follower for applying pressure to the patch, with their connected actu-ated mechanisms may be employed independently `bf the gumming and foldingrmechanisms; the

of the envelop,

fenvelo arrangement of the mechanism for applying a patch Ato an envelop blank and for pressing their overlapping surfaces together, as modifications in the various details of construction and arrangement may be made without departing from the scope of my present invention.

What I claim as my invention and desire to secure by Letters Patent isz- A l. In an envelop machine, the combination of the following instrumentalities, means 'for applying gum around an opening in an envelop blank, means for feeding the gummed blank to a pressing mechanism, means for applying a patch to the envelop blank to cover the opening, a pressing mechanism comprising means for applying pressure to the overlapping surfaces of the patch and blank, means for feeding the atched blank to a folding mechanism, an means for folding the blank.

2. In an envelop machine, the combination of a feeding table for supporting a pile of envelop blanks, a reciprocating gumming die for applyin gum around an opening in the uppermost lank in said pile, means for feeding. the gummed blank to a pressing table, means for applying a patch to the enl velop to cover the opening, and means acting coincidently with the application of the `patch to the blank, for firmly uniting the patch to the blank.

3. In an envelop machine, the combination of a feeding table for supporting a' pile of envelop blanks, a reciprocating gumming die -for applying gum around an opening in the uppermost blank, means for feeding said blank to a pressing table, means for applyingl a patch to the envelop blank to cover the opening, means, acting coineidently with the application of a patch to the blank, for firmly uniting the patch to the blank, and means for the Withdrawal of said blank and patch from said pressing table. f The combination with a feeding` table mechanical means, and to combine for supportimT a pile of envelop blanks, means for app ying gum around an opening in the uppermost blank, a pressing table for supporting said blank, a reciprocating car riagc for feeding said blank to said pressing table, means for controlling the position of said blank on said pressing table, means for applying a patch to the gummed surface of said* blank while on said pressing table, and means acting coincidently with said application of said patch to said blank for firmly uniting said patch to said blank.

5. In an envelop machine, the combinationwith mechanism for gumming an envelop blank around an opening therein, mechanismfor folding the blank and means for feeding the blank from the. gumming to the folding mechanisms with an intervening dwell of the blank, of mechanism interposed between the gumming and folding mechanisms for applying a patch to the blank covering the opening therein.

6. The combination with mechanism for gumming and folding an envelop blank, of means for feeding the blank from the gumming to the folding mechanisms with an intervening dwell of the blank, a pressing table adapted to support the blank during its in l tervening period of dwell and mechanism for securely aiiixing a patch to said blank during its intervening period of dwell.

7. The combination with mechanisms for gumming and folding an envelop blank, of a. pressing table interposed between said gumming and folding mechanisms, means for feeding a blank from the gumming to the folding mechanisms over, said table with a period of dwell therein, means for registering the blank on said table, means for applying a patch to the blank during its period of dwell, and means for applying pressure to the overlapping surfaces ofthe patch and blank.

S. In a mechanism for attaching patches to envelop blanks, having openings therein, the combination of a support for an envelop blank a (rumniiinT die for a )lvinnr `adhesivey l h I* u Y* material around said opening, a receptacle for holding patches for covering said opening, an envelop support beneath said receptacle, means for feeding the gummed blank from beneath the gumming die to a position beneath the patch receptacle, means for imparting a downward movement to said receptacle to carry a patch into contact with the' gummed surface of the envelop blank, a follower for pressing the patch upon the blank and means for imparting a downward movement to said follower independently of -the movement 'of the receptacle.

9. In a mechanism for attaching patches to the gummed surface of an envelop blank, the combination of a pressing table for supporting an envelop blank, with an opening in said blank having gummed edges, a carriage IIL,

iis

. to an en velo rock shaft, a link pivoted to said arm, a cam for carrying said blank across the upper surfalce of said pressing table, means for actuat to carry -a patch into contactv with lthe blank,

means acting coincidenti)7 with theniovement of said receptacle for firmly aflixing said patch to said blank, and `means for separating the lowermost patch as it is brought into Contact with the gummed surface of said blank.'l

10. In a mechanism for attaching a patch blank, the'coni-bination of a support for t ie blank, vertical guides above said support, a receptacle for patches inoving iii sai-d guides, a rock shaft, radial arms carried b v said roek shaftand pivotally connected with said receptacle, an arm on said roll carried b v sait link, a. cam for controlling the movement of said cani roll, and a spring for holding the cam roll in contact with the cani. p Y i 11. ln a mechanism for attaching a patch to-an envelopblank, the combination of a support for the blank, a receptacle for patches, means for moving said receptacle downward to carr)v a patch into contact with the blank, a follower, means for moving said folloiijer independently from said receptacle and meansfor imparting an additional and sudden 'pressure to said follower when the receptacle has completed its downward movement.

' ofthe patch holder,

' raised upward.

cover the. opening,

12. In a mechanism for attaching a patch to an envelop blank, the combination with a su `port for the blank, a reciprocating patch ho t er, of movable plates in the lower' edge whereby the blank is retained on its support as the patch'holder is 13. In a mechanism for attaching a patch to an envelop blank the combination with a support for the blank and a reciprocating patch holder, ofineans for separating the lowermost patch consistingr of separator bars provided with inward projections or toesatA their lower ends anil with teeth above said arms in contact with the patches.

14. In an envelop machine, the conibinatin of the following instrumentalities, means for applying gum around an opening in an envelop blank, means for feeding the gummed f blank to a pressing mechanism, means for applying a iatch to the envelop blank to a pressing .mechanism for securely afixing said patch to said blank, and means for folding the lap of the envelop. 15. The combination with mechanism for guniming an envelop blank around an open ing therein, mechanism for folding the flaps 'of said blank and means for feeding the blank from the gumming mechanism to the flap folding mechanism, of mechanisminterposed between the gumming mechanism and flap folding mechanisms for applying, a patch to the blank to cover the opening therein.

Dated this third day of July 1903w WILLIAM D. SLATER'. Witnesses:

RUFUs B. FowLEn, PENELOPE CoMB'ERBAoH. 

